Specifications
| Weight | 66 grams |
| Bearing Size | 6900 (2) |
| Axle Diameter | 12 mm |
| Available Drillings | 16, 20, 24, 28, 32 hole |
| Available Colors | black, red, silver |
|
|
| Wheel Building Dimensions |
|
| Flange Diameter | 32.0 mm |
| Center to Flange | 39.3 mm
|
Detail
Introducing the Alchemy E.L.F. (Extra Light Front) front hub from Alchemy Wheelworks. While the E.L.F isn't the lightest hub on the market (64g) when considering strength to weight it does perhaps build one of the best wheels available. The E.L.F is able to achieve this through several innovations and features.
Most significantly is it's use of a 6900 series bearing in place of the common 6800 series found in most front hubs. The 6900's important difference lies in the thicker cross section and use of larger balls than traditional 6800 series bearings. The consequence of the stouter bearing is an increased load capacity. (See the load capacity chart at the bottom for a comparison against common light-weight hubs).
The E.L.F's hub flanges are angled at 6 degrees with a flange width of 82mm, allowing for a stiffer and stronger build. In hub flanges, wider is better for strength, with a slight aerodynamic sacrifice. To further increase wheel strength, the 6900 bearings are spaced further out than in traditional hub designs. Alchemy sites this design as virtually eliminating axle bowing and flex by reducing the the dropout to bearing distance 8-13mm compared to common designs. The resulting performance characteristics are increased bearing life and increased lateral stiffness of the wheel.
Bearing #6900 (10x22x6) - static capacity = 303hubs that use this bearing:Alchemy E.L.F., weight = 65g
Bearing #688 (8x16x5) - static capacity = 135hubs that use this bearing:AmClassic Micro-58, weight = 58g, axle diameter = 10mmM5 flanged and straight pull, weight = 33g-46g, axle diameter = 8mm
Bearing #6801 (12x21x5) - static capacity = 188hubs that use this bearingWhite Industries H1, weight = 72g, axle diameter = 12mmExtralite Ultrafront SX, weight = 49g, axle diameter = 12mm
Bearing #6802 (15x24x5) - static capacity
= 219hubs that use this bearing:Tune Mig70, weight = 75g, axle diameter = 14mm/15mmTune Mig45, weight = 48g, axle diameter = 15mm (carbon)
Bearing #6803 (17x26x5) - static capacity = 276hubs that use this bearing:Extralite Ultrafront SL, weight = 62g, axle diameter = 15mm/17mm
